Gasoline-line lock



D. R. COX AND D.- A. KIN'NIE.

- GASOLINE LINE LOCK. APPLICATION FILED JUNE 27,1921- .1,426,154=. Patented Aug. 15, 1922.-

I WTTORNEYS; 4

- Damn!) a. cox aNn Davina. Emma, or PASADENA. camroama.

GASOLINE-LINE Specification a LettersPatent. Pme f Aug 1 1922,

application filed .nm 27.1921. Serial no. 480303;

7 To all/whom it may; concern! 1 Be it known that WfDANIELlRL Cox and DAVID A. 'KINNIE, citizensof the United States, residing at Pasadena, infthecounty of Los Angeles and State of California,

have invented new' and usefulImprove- .ments' in Gasoline-Line Locks, ot.-which the I following is a specification.

Our invention relates generally-to lock-w ing devices, and more. particularly" to a gasoline linejlock; that is, a valvelike'device that is capable of being locked so as to efiectually cut off the flow of gasoline through the line or conduit that leads from a supply'tank to the carburetor that is associated' with an internal combustion engine.

The principal object'of our invention is toprovide a gasoline line lock that is of relativelylsimple structure, capable of being easily and cheaply produced, and which will provide efi'ectiye means for preventing the unauthorized use of the vehicle to which the device is applied.

view, our invention consists in certain novel features ofconstruction and arrangement.

of parts that will be hereinafter more fully described 1 and" claimed, and illustrated. in

the" accompanying drawings, in which:

-Fig. 1 is a vertical section taken through the center of a gasoline line lock of our im-,

proved construction, and showing the'valve plug thereof'in position to close the passageway' through the device.

' ig. v2. is a vertical section similar to Fig.1, and showing the valve plug in position to permit the passage of fluid through Fi'gb fi is "a perspective View of the lower I portion of the member that is utilized for retaining the rotaryfvalve plug' i'n its different ositions.

Fig. isaperspective view of the rotary valve plug forming a part of the device.

Referringby numerals to the accompanying drawings, which illustrate a practical embodiment of our. invention, 10 designates With the foregoing and other objects in thebody ofthe device that is preferably I in the form of a short horizontally disposed cylinder having its end portions 11 reduced in diameter and constructed so as to be directly connected to the tubular members-of a conduit such as agas'oline line.

Formed through this body 10 is an 'axi any disposed bore or passageway 12', and

14. This valve .chamber tapers gradually toward its lower end, and it intersects the longitudinally disposed passageway 12.

Arranged for rotary movement within the tapered valve chamber 14 is a tapered valve plug 15 having a diametrically arranged opening 16 ;that is located so that when the. valve plug is turned into proper position, said opening practically forms a continuation ofthe duct or passageway 12.

Formed in' the upper portion of valve plug 15 is an arcuate slot 17 that is approximately 90 in length, and seated in the wall of tubular extensi0n 13 and projecting into said slot is a pin 18, such pin and'slot pro- I vid'ing means for limiting the rotary movement of the valve plug. Y

Formed on top of the body of the'valve plug 15--is a pair of oppositely disposed upwardly projecting lugs 19, and formed in the .top of said plug between said lugs, is a key recess 20.

-Arranged w thin the chamber in the tubular extension 13 immediately above plug-15,

is a ring 21 in the underside'of which" is formed a series of four notches or recesses 22' that are disposed appr oxim aitely apart, and said notches beifig adapted to receive the lugs 19 on'plug 15.

Seated in the tubular extension 13 is a pin 23 that projects into a vertically dis-' spring 25 the upper end of which bears against the underside of a disc 26, which latter is mounted for rotary movement in the upper end of the tubular member 13 and retained therein by a lip or flange 27 that projects from the inner edge of the upper portion of said member 13. Formed in the-center of this rotatably mounted disc is a keyhole 2-8 that is adapted to receive the shank of a key such as 29 and the lower end of said shank being adapted to engage in the-recess in plug 15 when the key is inserted into the locking device.

To rotate valve plug 15 and shift the same from one position to another, key 29 is inserted through keyhole 28 and moved downwardly until the lower end of the key is p0- sitioned in recess 20, and, by now giving the key a quarter of a turn the plug is rotated to out as, or establish, flow of liquid through the passagewaylQ anddiametrical port 16. @bviously, when a flowof liquid" through the 'device'is established, port l6vis in alinement.

with passageway 12, as shown in Fig. 2.

' When the flow ofliquid is cut off, said port occupies a position crosswise or at right angles, to passageway 12 as illustrated in Fig. 1. i c

I s plu 15 isrotated approximately a quarter 0? a turn to establish or cut oil the flow of liquid through the device, the lugs 19 on top of said plug will ride from one pair of recesses 22 in the underside of ring 21 to the other pair of recesses, and, in so doing, ring 21 is moved upward a short distance against the resistance oilered by spring 25.

This construction and arrangement provides efiicient means for holding the plug against movement in either direction as it has been partially rotated or shifted from one position to another.

The pin 18 engaging in arcualte slot 17 limits the rotary movement of the valve plug 15, and the pin 23 operating in slot 24 permits thering 21'tobe elevated as the valve plug is rotated and restrains said ring from rotary movement. By the use of a tapered plug in a tapered chamber and the arrange ment of aspring for imparting downward. pressure upon the plug, the valve is selfgrinding and self-seating in operation, and} as a resultthere will be very little, if any, leakage offluid between the valve plug and the body of the devicesurrounding the same.

' A device of our improved construction is comparatively simple, may be easily and cheaply produced, and 'is very effective in performing its intended functions. While.

we have shown and described the device as being particularly intended for use for lock- 'ing gasoline lines, it will be understood that the device may be advantageously employed wherever it is desired to effectively prevent the unauthorized use or drawing of liquids through a supply tube. I

It willv be readily understood that minor changes in the size, form and construction menace plug arranged for rotation within said tubula r member and provided with a port that is 7 adapted to coincide with the opening through said tubular member, spring pressed "means for maintaining the valve plug in position-within said tubular member, a. pair of lugs formed on top of the valve plug, there being a series of radially disposed recesses formed in the under side of said spring pressed means, which recesses are adapted to receive said lugs, and means for rotating said valve plug.

2. In a :gasoline line look, a substantially tubular member provided with a tapered valve chamber that intersects the opening through said tubular member, a valve plug arranged for operation within said chamber and having. aport that is adaptedto coincide with the opening through the tubular member, a spring pressed member retained for vertical movement above said plug, a pair of lugs formedo-n top of the valve plug and there being a series of radially disposed recesses formed in the under side of said spring pressed member, which recesses are adapted to receive the lugs on the plug.

3. in agasoline line look, a substantially tubular member provided with a tapered .cated in the gasoline line, a. tapered valve valve chamber that intersects the opening through said tubular member, a valve plug arranged for operation within said chamber and having a port that is adapted to coin? cide with the opening through the tubular member, a spring pressed member retained for vertical movement above said plug and bearing thereupon, the lower end of said memb-er and the upperend of said plug having interengaging parts, and a key adapted to be inserted through the spring pressed member and to engage in a. recess formed in the top of the valve plug for imparting rotary movement thereto.

4. In a gasoline line lock, a substantially tubular member provided with. a ta red valve ohamber, a valve plug arrange for rotary movement within said valve chamber and having a port that is'adapted to register with the opening through said tubular member, therebeing a' key recess formed in the top of said valve plug, aspring pressed member disposed above and bearing upon said valve plug, said member and said valve plug having interengaging parts that are effective in retaining the valve pin in either one of its shifted positions, and a ey adapted to be inserted through the spring pressed v gasoline line, a valve plug arranged for rovtation within said tubular member at right angles tothe opening therethroughsaid plug being provided with a port that is adapted to communicate with the opening through the tubular member, a tubular member extending substantially at right angles from the first mentioned tubular member above the valve plug therein, a spring pressed member arranged for sliding move- 15 ment in said tubular extension and bearing upon the upper end of the valve plug, said spring pressed member and valve plug having interengaging parts for retaining the valve plu tions, an a. key adapted to be inserted through said tubular extension and through said spring-pressed member for engaging and rotating said valve plug.

In testimony whereof we have signed our 25 names to this specification.

- DANIEL R. COX.

' DAVID A. KINNIE.

in either one of its shifted posh-20 I 

